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Jagdpanzer · 03-25-2019

Sounds like it could be your primary fuel pump. When starting cold the ECM turns on both fuel pumps. Then cuts off the secondary pump when the engine coolant temperature reaches 176 F.

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03-25-2019	#9
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,647	Thank You....... Sounds like it could be your primary fuel pump. When starting cold the ECM turns on both fuel pumps. Then cuts off the secondary pump when the engine coolant temperature reaches 176 F. Sent from my iPhone using ZR-1 Net Registry __________________ Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake